1121123135 has 8 divisors (see below), whose sum is σ = 1467652176. Its totient is φ = 815362240.

The previous prime is 1121123111. The next prime is 1121123137. The reversal of 1121123135 is 5313211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121123135 - 2¹⁴ = 1121106751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121123137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10191974 + ... + 10192083.

It is an arithmetic number, because the mean of its divisors is an integer number (183456522).

Almost surely, 2^1121123135 is an apocalyptic number.

1121123135 is a deficient number, since it is larger than the sum of its proper divisors (346529041).

1121123135 is a wasteful number, since it uses less digits than its factorization.

1121123135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20384073.

The product of its digits is 180, while the sum is 20.

The square root of 1121123135 is about 33483.1768952709. The cubic root of 1121123135 is about 1038.8458396291.

Adding to 1121123135 its reverse (5313211211), we get a palindrome (6434334346).

The spelling of 1121123135 in words is "one billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred thirty-five".